1 pointOn the market place, there is a caroussel modules with banner manager, you can look. I think there a little tutorials video. Look the Best pratices Forum
1 pointHello @Catalina. Yes, you must do that. just for a module you must take all. If you install a new modules (files), it's better to put in default and a new template. Why because, if you create a new template, all the files will work with no error.